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6β-Hy-droxy-eremophil-7(11)-en-8β,12-olide
1College of Life and Environment Science, Minzu University of China, Beijing 100081, People's Republic of China.
Abstract:
The title eremophilenolide, C(15)H(22)O(3), is a natural compound isolated from Senecio laetus Edgew. The two cis-fused six-membered rings have chair confomations and the five-membered ring has a planar envelope conformation [maximum deviation = 0.010 (1) Å]. The β-hy-droxy group participates in inter-molecular O-H⋯O hydrogen bonding, forming mol-ecular chains along the a axis.
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